cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A088197 First differences of A088196.

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%I A088197 #2 Jan 24 2006 03:00:00
%S A088197 1,3,4,1,3,4,4,5,3,5,3,4,4,5,7,1,7,4,-2,10,4,4,6,7,3,4,1,3,16,4,4,4,9,
%T A088197 3,5,7,4,5,7,1,11,-2,7,3,12,12,4,1,3,8,-4,16,4,8,5,3,5,3,4,9,15,4,-2,
%U A088197 7,15,2,14,1,3,8,8,5,7,4,5,8,3,4,16,1,11,-2,10,4,4,6,7,3,4,12,8,4,8,4,5,11,4,17
%N A088197 First differences of A088196.
%o A088197 (PARI) qnrp_d(n)= { /* The difference sequence of the sequence with the largest QnR modulo the primes */ local(k=1,m,p,fl,jj,j,v=[]); for(i=3,n,m=0; p=prime(i); jj=0; fl=2^p-1; j=2; while((j<=(p-1)/2),jj=(j^2)%p; fl-=2^jj; j++); j=p-1; while(m==0,if(bitand(2^j,fl),m=j); j--); v=concat(v,m-k); k=m); print(v)}
%Y A088197 Cf. A088191, A088196, A088198, A088199, A088200, A088201.
%K A088197 easy,sign
%O A088197 2,2
%A A088197 Ferenc Adorjan (fadorjan(AT)freemail.hu), Sep 23 2003